an overwhelming feeling upon the receipt or collection of an indigestible or incomprehensible amount of information, the feeling of being faced with an amount of data that one has no hope of completely processing

jargon When a person feels unable to read all the information that is presented or available to them, particularly where they need to make decisions based on that information but can't because there is just too much to take in in the time available. (2005-01-09)